Telephone system switching control



Aprll 25, 1961 H. H. ABBOTT ET AL v TELEPHONE SYSTEM SWITCHING CONTROL53 Sheets-Sheet 1 Filed May 14, 1958 ww mm S EOUIPMEN T CAB/NE 7'5 ATTENDANT CONSOLE .0. W E -L. 0. SCHMIDT R. D. W/LL/AMS BY ATTORNEY.

April 25, 1961 H. H. ABBOTT ETAL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL 53 Sheets-Sheet 4 Filed May 14, 1958ATTORNEY Apnl 25, 1961 H. H. ABBOTT ET AL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL 53 Sheets-Sheet 5 Filed May 14, 1958R. O. R/P R INVENTORS L0 SCHM/DT y RD. W/LL/AMS ATTORNEY Apnl 25, 1961H. H. ABBOTT ET AL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL 55 Sheets-Sheet 6 Filed May 14., 1958H. H. ABBOTT R. o. R/PPERE INVENTORS L. 0. SCHM/DT By R. 0. W/LL/AMSApnl 25, 1961 H. H. ABBOTT ET AL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL Filed May 14, 1958 53 Sheets-Sheet 7j m3 ww 9E SE28 $56.3 2 3 q 3 /N l/E N TORS ATTORNEY April 25, 1961 H.H. ABBOTT ET AL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL 53 Sheets-Sheet 8 Filed May 14, 1958H. H. ABBOTT WVfl/TORS f. 3. 562%);

R. 0. WILL/AIMS ATTORNEY April 5, 1961 H. H. ABBOTT ETAL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL 53 Sheets-Sheet 9 Filed may 14, 1958qOQk 20b MLSOQ H- H. ABBOTT R. O. R/PPERE lNl/ENTORS HM/DT By R. D-WILLIAMS 4 NEK Aprll 25, 1961 H. H. ABBOTT ETAL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL 53 Sheets-Sheet 10 Filed May 14, 1958133 NO/i/SOd $570801 A Z'TORNEY April 25, 1961 H. H. ABBOTT ET AL2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL 55 Sheets-Sheet 11 Filed May 14, 1958A TTORNEY April 25, 1961 H. H. ABBOTT ET AL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL 53 Sheets-Sheet 12 Filed May 14, 1958Yo 9: 5k 60 H. H. ABBOTT ,NVENTORS R. 0. R/PPERE L. 0. SCHM/DT By R- D.W/LL/AMS ATTORNEY April 25, 1961 H. H. ABBOTT ETAL 2,931,304

TELEPHONE SYSTEM SWITCHING CONTROL 5: sheets-sheet 13 Filed May 14, 195806k UMEEOU WEN.

H. H ABBOTT I 0 SCHMIDT R. D. W/LL/AMS R 70 R/PPERE L /N 5 N TORSATTORNEY April 25, 1961 H. H. ABBOTT ETAL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL Filed May 14, 1958 53 Sheets-Sheet.133 19.4 2 may WWW I 1 5 l TE M w mmw J n Qmku L w Em a You H w. z z wA us m PE 3 2kg R m w a T s q M 0% Q U W. ewo x0 m V 5 my 3 B lY N 3m kmlllvnlllmw W 23.6 N I. ll w um u Eu mJ U w. m 8% m m |l|||| M 85 E h Q wN n .E 9 E v 9 S W n .a we .bw s a x 2 .1. mum

S A HQUV HI m a U m 33 m 35 KS n. gt.. .1. D 2 2 C n m X m X w v u M n uw 9 A Eh QEX Yuk w n um: 35 Bu 5; E x m j J W w m Est FL 1. .5 a SEQ m 83.. v mi v M 9m E X 9 X E n j u u h u x 0 8i \k Bu St E 3 Qfi ATTORNEYApril 25, 1961 H. H. ABBOTT ETAL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL Filed May 14, 1958 55 Sheets-Sheet l6A TTQRA Aprll 25, 1961 H. H. ABBOTT ET AL 2,981,304

TELEPHONE SYSTEM SWITCHING CONTROL 53 Sheets-Sheet 17 Filed May 14, 1958#5325 53 //V|/E/V7 OR$ LIDISCHM/D P.0- W/LL/AMS 'x P 2 W h ATTORNEYApril 25, 1961 H. H. ABBOTT ETAL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL Filed May 14, 1958 53 Sheets-Sheet l855 Sheets-Sheet l9 ETAL H H. ABBOTT L. D. SCHMIDT R. D. W/LL/AMS BY 1ATTORNEY H. H. ABBOTT TELEPHONE SYSTEM SWITCHING CONTROL A ril 25, 1961Filed May 14, 1958,

lNl/ENTORS R/PPERE April 25, 1961 H. H. ABBOTT ET AL 2,981,804

TELEPHONE SYSTEM SWITCHING CONTROL Filed May 14, 1958 53 Sheets-Sheet 20I p a x H. ABBOTT R. O. R/PPERE lNl/ENTORS L 0 scHM/DT R.

D- WILLIAMS 5) wz A TTORNEV FIG. /9

